Endless-belt die for brick-machines, &amp;c.



No. 748,244. 4 PATENTED DEC. 29. 1903. A. W. WILLBTT; ENDLESS BELT DIBFOR BRICK MACHINES, 6w;

APPLIOATION FILED APR.11, 1903. N0 MODEL. 4 2 SHEETS-SHEET 1.

- No. 748,244. PATENTED DEG.29,1903.

A. W. WILLETT.

ENDLESS BELT DIE FOR BRICK MACHINES, 8w. APPLICATION FILED APR. 11. 1903.

N0 MODEL. 2 SHEETS-SHEET 2.

WW m

UNITED 'jSTATES Patented December 29, 1903.

PATENT 1 Erica.

ENDLESS-BELT DIE,

FOR; BRICK-MACHINES, 81.0.

SPECIFICATION forming part of Letters Fatent N0. 74,8,24A, dated December 2 1 0 Application filed April 11, 1903. Serial llo- 152,192. No model.)

To all whom it may concern:

Be it known that LALLEN W. WILLETT, a citizen of the United States, residing at Per kasie, in the county of Bucks and State of Pennsylvania, have invented certain new and useful Improvements in Endless-Belt Dies for Brick-Machines, &c. and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same.

.die embodying my invention.

This invention relatesto machines and devices for the formation of bricks, tiles, pipes, &c., from clay or other plastic material, and has for its object to reduce to a minimum the friction of the column of clay passing be tween the compressing and forming die from the discharge-outlet of the mixing chamber of the brick-machine. This is accomplished by providing a compressing and forming die which not only presents extended traveling, compressing, and forming surfaces, but also adjustable to present the surfaces of least resistance. i

The invention further has for its objectto provide a thoroughly compressed,condensed, and compact brick with smooth surfaces and well-defined edges.

I Referringto the accompanyingdrawings,in which similar figures of reference indicate like parts, Figure lis a side view of the invention in longitudinal section, showing the location and arrangement of the parts of the Fig. 2 is a plan view. Fig. 3 isa detail view, in side elevation, of one of the castings and movable parts of the die. Fig. 4 is a view in crosssection on the line a 00, Fig. 3. Fig. 5 is a modification thereof.

1 is the tapering discharge funnel or chute end of the clay-mixing chamber, (not shown, provided with the flanged end portion 2, having an opening 3 therein.

4 is a slightly-tapering discharge-chute projecting from the opening 3 and between the rear ends of the movable parts of the presserdie, formed by two pairs of elongated traveling presser belts or bands 5, of suitable metal, such as sheet-steel, but preferably of sheet-brass. Each endless belt 5 is mounted on an endless flat-linked metallic chain 6, which in turn is mounted on an endless roller-chain 7, resting on an oblong casting flange 9, which separates the pairs of rollerchains 7, there being two of these chains on each casting or support 8. The castings or supports 8 are each mounted in a frame or support 10, mounted at its rear endon the hinged gate 11, secured bya bolt 12 adjacent to the chute 4, each frame or support 10 terminating at its forward end at the traveling belt,(where the pressed bricks are cut off and carried forward.) The castings or supports 8 are mounted in the frames 10 by bolts or pins 13, mounted in holes 14 inthe casting and projecting into slots 15 in the frames 10. The upper and lower castings 8 are separated vertically, as at 16, into two parts, forming a short forward part and along rearward part hinged at 17. To regulatethe size of the passage-way between the surfaces presented by the endless belts 5 for the column of clay expressed from the mixing-chamber, the castings 8 are made adjustable by means of screw-pins l8 bearing against the pins 13 in the slots 15, and also to accommodate and direct the said column of clay the rear or long part of the castings 8 may be adjusted by the screw-pins 18 at that point. i i

It will thus be seen from the foregoing description that the pressing and forming die is composed of two lateral and forming sur faces forming a passage-way through which the column of clay expressed from the mixing-chamber passes. By adjusting the rear portions of these surfaces, as explained, the

vent the clay from clogging, and by presenting the elongated traveling presser-surfaces at the proper adjusted position apart not only will such elongated traveling surfaces avoid friction of the column of clay, out also the column of clay will be all along its surface equally compressed and made compact and smooth, so as .to afford a brick thoroughly pressed, compact, and with smooth edges.

In brick-machines where there is friction of the column of clay with the walls or surfaces of the die the movement of the column of clay is retarded and the compression and formation is uneven and irregular, resulting in imperfect and defective bricks. By this orsuppo'rt 8, and a longitudinal ridge or proper entrance-angle is maintained to preinvention these objections are overcome. Moreover, with this construction of moving parts of the die, as herein set forth, no driving mechanism is employed, thus afiordin'g a simple and economical construction.

In Fig. 4 is shown a vmodification of the roller-chain construction in which instead of a chain rollers or balls 19 are employed, located in sockets or grooves 20 in the casting 21.

While I have set forth a specific construction of parts in the movable parts of the die,

I do not limit myself thereto, as they may be varied without departing from the essential features of the invention.

It is obvious the invention may be used with brick, tile, or pipe machines by adapting such machines with the die herein set forth.

Having thus described my invention, what I desire to claim and secure by Letters Patent is- 1. In a brick-machine, a forming-die, consisting of adjacent, endless, traveling, elongated presser-surfaces, or dies, forming a passage-way for a moving column of clay, and continuous back supports, maintaining the presser-surfaces in an even unyielding position, as herein set forth.

2. In a brick-machine, a forming-die, consisting of a number of adjacent, endless, traveling, elongated presser-surfaces, or dies, forming a passage-way for a moving column of clay, with opposite presser-surfaces, or dies adjustable toward each other, throughout their length, said presser surfaces having continuous back supports, as herein set forth.

3. In a brick-machine, a forming-die, comprising two pairs of adjacent, endless, traveling, elongated presser-surfaces, a portion of said elongated surfaces projecting to the rear of the discharge-spout, thus forming an elongated passage-way for a moving column of clay, substantially as described and for the purposes set forth.

4. In a brick-machine, a forming-die, comprising a plurality of adjacent, endless, traveling, elongated presser-surfaces, a portion of said presser-surfaces being laterally adjustable independent of the other surfaces, for formingian inclined passage-way fora moving body of clay by the convergent faces of said presser-surfaces.

5. In a brick-machine, a forming-die, comprisinga plurality of endless, traveling, elongated presser-surfaces, secured to the dis charge end of the machine, said elongated surfaces surrounding the discharge chute or end of the machine, and forming a longitudinally-elongated passage-way for a moving column of clay, each of said elongated pressersurfaces being propelled only by the moving body of clay, substantially as described.

6. In a brick-machine, a forming-die, consisting of a numberof adjacent, endless traveling, elongated presser-surfaces, or dies, adj ustable toward each other, and each partly adjustable at an angle, said dies forming a passage-way for a movable column of clay, as herein set forth.

7. In a brick-machine, a forming-die, composed'of a number of adjacent, endless traveling, elongated presser -surfaces, or dies, each consisting of an oblong support; endless roller-chains mounted on said support; an endless flat-link chain, mounted on the rollerchains; and an endless metallic band, mounted on the flat-link chain; the several dies forming together a passage-way for a column of clay to pass through, as herein set forth.

8. In a brick-machine, a forming-die, composed of a number of adjacent, endless traveling, elongated presser surfaces, or dies, each consisting of an oblong support; endless roller-chains, mounted on said support; and an endless metallic band, mounted on the flat-link chain; certain of the said oblong supports being formed in hinged sections, with means for adjusting the entire support to or from adjacent support, and also adjusting part of the support at an angle, as herein set forth.

9. In a forming-die for brick-machines, a presser-surface, or die, consisting of an oblong support; a pair of endless traveling roller-chains, mounted on said support; an endless flat link chain, mounted on said roller-chains, and an endless metallic band, mounted on the flat-link chain; the oblong support being mountedinaframe,andformed in hinged sections, and means for adjusting the support in its frame, and also adjusting part of it at an angle, as herein set forth.

10. The combination with the mixingchamber, and discharge-opening of a brickmachine, of supports mounted adjacent to said discharge-opening, and endless, traveling bands, adjacent to each other, and forming presser-surfaces or dies, and constituting a passage-way for the passage of a column of clay, and means for adjusting said bands toward each other, and also partly at an angle, as herein set forth.

In testimony whereof I aftix my signature in presence of two witnesses.

ALLEN W. WILLETT. Witnesses:

WM. BRUCKER, J r., HARRY E. GRIM. 

